The American Journal of Science and Arts, Vol. 100: July, September and November, 1870 (Classic Reprint)
By B. Silliman
Hardcover
$34.09
By B. Silliman
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Excerpt from The American Journal of Science and Arts, Vol. 100: July, September and November, 1870
In the experiments °ust detailed the highest average sensitive ness of the eye is o y rim while as before shown in practical use the average difference from the mean is less than 35 3 of the whole. This higher degree of accuracy results naturally from the mode in which the com ensations are made, (alternately by approach and recession,) an the fact that the compensations are t us interwoven, i...
In the experiments °ust detailed the highest average sensitive ness of the eye is o y rim while as before shown in practical use the average difference from the mean is less than 35 3 of the whole. This higher degree of accuracy results naturally from the mode in which the com ensations are made, (alternately by approach and recession,) an the fact that the compensations are t us interwoven, i...






















